Road disk



Dec. 24, 1935. J. A. VAUGHN ET A1.

ROAD DISK Filed March 6, 1933 2 Sheets-Sheet l Dec. 24, 1935. J. A.VAUGHN Er AL 2,025,257

ROAD DISK Filed March 6, 1953 2 Sheets-Sheet 2 Patented Dec. 24, 1935UNITED STATES ROAD DISK Jesse A. Vaughn, Los Angeles, Rollie H.Mitchell,

Southgate, and Oscar Park, Calif., assignors ing Corporation, Ltd., LosAngeles,

poration of California W. Sjogren, Huntington to Killefer Manufactur-Calif., a cor- Appllcation March 6, 1933, Serial N0. 659,608

8 Claims.

This invention relates to road disks, and more particularly to anapparatus for disking the surface of a roadway.

An object of this invention is` to produce a road disk in which meansare provided for enabling the easy handling and manipulation of roaddisks vertically with reference to the road surface.

Another object of this invention is to provide a road disk in whichmeans are provided for ad justing the disks and frame of the apparatusrelative to the road surface, and which adjustment means includes aspring balanced means for re#- lieving the weight from the adjustmentmeans so that the adjustment may be more accurately and easilyaccomplished by the operator of the apparatus. Other objects andadvantages of this invention it is believed will be apparent frcm thefollowing detailed 'description of a preferred embodiment thereof' asillustrated in the accompanying drawings.

In the drawings:

Figure l is a top plan view of a road disk embodying our invention.

Figure 2 is a side elevation thereof. f

Figure 3 is an enlarged section of the front end adjusting means.

Figure 4 is a sectional view of one of themeans provided for adjustingone side of the frame relative to the road surface at the rear.

Figure 5 is a sectional view taken substantially on the line 5 5 ofFigure l.'

. In the preferred embodiment of our invention -I A illustrated in theaccompanying drawings, I illustrates a frame to which there are securedby bearing brackets 2 a plurality of gangs of road disks 3. The roaddisks 3 are mounted in alternate staggered relation in a manner wellunderstood in the art. The frame I is supported at its forward end bymeans of a caster Wheel 4 and at its rear .end by means of a pair ofwheels 5 which are journaled on thespindles 6 of crank axles l.

Means are provided for adjusting the frame with reference to the roadsurface either so that the road disks 3 may follow the crown of the roador may be adjusted to a horizontal position or may be moved above theroad surface to permit the free transportation of the implement withoutthe disks 3 engaging the road surface, which means are hereinillustrated as including means (ol. 28o-t central portion rectangular ineifect and is se- Iiv cured to a bracket I). Mounted on the ends of theaxle t and the spindle thereof are the road wheels d.

The bracket 9 is vjournaled on a spindle I0,

which spindle is welded to -a plate II. Welded 10 to the upper surfaceof the plate II is a,` cylinder I2. Secured to the rearward extensionofthe plate I I is an adjustment screw I3. Secured to the frame bridge Itis a second cylinder I5 which is concentric tc the cylinder I2. TheAcylinder I5 l5 is mounted .over the cylinder I2. Interposed between thecylinders I2 and I5 are a plurality of springs I6, I'i and I8, forming acompound spring' structure, the springs being such that they areself-sustaining within thev cylinder I2. For example, the springs I 6may be right-hand coil, spring I TI, left-hand coil, and spring I8,righthand coil. The springs are supported on the plate il at their lowerend and extend upwardly through the cylinder I2 and into the cylinder I525 at their upper end where they engage an adjustment plate I0 which isadjustably mounted within the upper portion of the cylinder l5 and heldin adjusted position by means of an" adjustment screw "2li which adjuststhe initial pressure to 30 which the springs It, II and I 3 areadjusted.- The screw I3 projects upwardly through a guide plate 2l whichis secured to the lower end of the cylinder I5 and passes through and isthreaded lwithin a bevel gear 22, which meshes with a bevel gearl 23mounted on the end of the adjustment shaft 25. 'Y

The adjustment shaft 2d extends rearwardly to the rear end of the frameI and is there provided with a wheel 25 for rotation of the shaft 24 to40 rotate the gear 23 and hence by the direction of rotation to raise orlower the frame I with reference to the forward ground wheels 4. By thisconstruction the weight of the frame I and at` tached parts are relievedfrom the adjustment means permitting easy rotation of the wheel 25 andan accurate and ne adjustment of the position of the disks 3 withreference to the road surface.

Any suitable or desirable means is provided at the forward end of theimplement for moving the implement forward such, for example, as aclevis 26 which is securedy to the forward end of the guide plate `2|and which in turn may be secured to any suitable form of draft tongue21. Secured to the draft tongue 21 by means of a bracket 28 is a rod 29which extends forwardly to the tractor or other draft implement to causethe caster wheels 4 to turn with the direction of Vturn of the draftimplement. -In order to accomplish this result, a yoke 30 is mountedupon the bar 28 on a roller 3i and extends rearwardly and is clampedadjustment slide 3s is mounted between guides 31 secured to the angles38 of the frame I. Se-

Icured to the slide,l 36 is an adjustment rod 39Y which extendsforwardly and is threaded to a bracket 40 which is securely riveted tothe angle 38.

A lock nut 4| is provided for locking the adjusted position of the'slide 36 and thus the initial compression provided in concentricallydisposed springs 42, 43 and 44 mounted'within and between the cylinders34 and 35. Secured to crank axles 1 are adjusting arms 45, which arms 45are pivotally secured to the lower ends of screws 46, which screws 46are at their upper ends threaded through bevel gears 41. The bevel gears41 mesh with bevel gears 48 which are secured to the adjustment shafts49. The adjustment shafts 49 extend rearwardly and are provided with anadjustment handle 50. The, construction of the balancing and supportingmeans for each of the wheels 5 is the same, so that it is not deemednecessary to describe more than one.

In order to provide for the adjustable mounting of the disk gangs 3 sothat these gangs may be adjusted in their angular relation to thesurface being worked, the gang rods 60 which carry the disks arejournaled in bearings carried by subj frames 6|. The sub-frames 6| arepivotally secured at one end by pivot bolts 62 to the central members ofthe frame I and at their outer ends are secured by means of bolts 63 tothe side members of the frame. 'Ihe bolts 63 are adapted t'o be passedthrough any one of a plurality of adjustment holes 64 formed in the sideframe members.

Having fully described our invention, it is to be understood that we donot wish to be limited to the details herein set forth, but-our.invention is of the full scope of the appended claims.

We claim: f

1. In a road vehicle, the combination of a frame, wheels supporting oneend of the frame, including means for connecting the wheels with theframe comprising concentric cylinders for each of said wheels, springmeans interposed between said concentric cylinders, and means foradjusting the position of the wheels relative to the frame, and meansoperatively connecting said adjusting means and said concentricalydisposed cylinders so that the spring means balance the weight of theframe to enable easy operation of said adjusting means.

2. In a road vehicle, the combination of a frame,

wheels supporting the respective ends of the frame, including a pair ofrear wheels, crank axles journaled to the frame supporting the rearwheels, a pair ci concentric cylinders for each crank axle', springsmounted between the concen- 5 tric cylinders, means connecting onecylinder with the crank axle to yieldably resist rotation of the crankaxle, means connecting the other of said concentric cylinders with theframe, and screw means connected with the crank axle for 10 adjustingthe position of the crank axle with relation to the frame.

3. In a road vehicle, the combination of a frame, wheels supporting therespective ends of the frame, including a pair of rear wheels, crankaxles l5 journaled to the frame supporting the rear wheels,

a pair of concentric cylinders for each lcrank axle, springs mountedbetween the concentric cylinders, meansconnecting -one cylinder with thecrank axle to yieldably resist rotation of the crank axle, 20 meansconnecting the other of said concentric cylinders with the frame, screwmeans connected with the crank axle' for adjusting .the position of thecrank axle with relation to the frame, and means for connecting one ofsaid concentric cyl- 25 inders with the frame, including means foradjusting the position along said frame of the connection between saidcylinder and the frame.

4. In a device of the class described, the combination of a frame,wheels supporting the frame, 30 means interposed between the frame andthe wheels for connecting thewheels to the frame,. said means includingfor each of said wheels -a pair of concentrically disposed cylinders,compound spring means mounted within the cylin- 35 ders, means foradjusting the initial /compression of said springs, and means foradjusting .the position of said cylinders one within the other to adjustthe height of the frame with reference to the supporting surface uponwhich the wheels 40 are mounted. e

5. In a road vehicle, the combination of a frame, wheels supporting oneend of the frame, means connecting the wheels with the frame, includinga pair of concentrically disposed cylinders, means 5 connecting thecylinders with the axles supporting the wheels, a plurality ofconcentrically disposed sprlngs mounted within thecylinders, means forrelatively adjusting said cylinders to determine the initial compressionof said springs, 50 and means for relatively adjusting said cylinders todetermine the force exerted by said springs l tending to elevate theframe relative to the wheels.

and means operatively connected between the wheels and the frame foradjusting the elevation of the frame relative to the surface upon whichthe wheels are mounted.

6. In a device of the class described, the combination of a frame, aground wheel for supporting one portion of the frame, a crank axle jouronale'ii` from the frame, the ground wheel being journaled on the crankaxle extension of said crank axle, means for 'yieldably holding saidcrank axle from rotation relative to the frame, said 65 means includinga plurality of concentrically mounted spring members, means for securingsaid spring members at one end to the frame, an arm secured to the crankaxle, means for securing the other end of the spring means to said arm,and means mounted on said frame and secured to said crank axle foradjusting the rotative position of the crank axle relative to the frameto determine the position of the frame relative to the surface onlwhichthe ground wheel ls supported.

7. In a device of the class described, the combination of a. frame,ground wheels supporting one end of said frame, an axle member on whichsaid ground wheels are journaled, a cylinder, means securing saidcylinder to said axle member, a second cylinder secured to the frame,said cylinders being concentrically positioned, spring means mountedwithin said cylinders, and means secured to said axle and to said framefor adjusting the position of the ground wheels relative to the frame.

8. In a device of the class described, the combination of a frame,ground wheels supporting one end of said Trame, an axle member on whichsaid` ground Wheels are Journaled, a cylinder,

means securing said cylinder to said axle member, a second cylindersecured to the frame, seidT cylinders being concentrically positioned,spring means mounted within said cylinders, means secured to saidaxle'and to said frame for adjusting the position of the ground wheelsrelative to the frame, and means for adjusting the spring meanspositioned within said concentrically disposed cylinders to determinethe pressure exerted by said cylinders to balance the loud imposed 10upon said adjusting means during the operation of said device. JESSE A.VAUGHN. ROLLIE H. MITCHELL. OSCAR W. SJOGREN.

